Know what would be extremely better than awesome? If some kind soul were to figure out the FAR compatibility numbers for all the wing pieces and control surfaces, and post those stats in this thread.

I've been planning on making shuttle-style spaceplanes capable of lifting 2.5m parts inside an enclosed cargo bay, and was going to rescale Touhou Torpedo's mk3 cargo bay. It'll be much better to use your HL parts for that role. I also LOVE the compatibility with his mk4 pieces. Great idea.

Nice! I hurt my brain the last time I tried to figure that FAR stuff out on my own. Still haven't fully recovered.
I noticed one bug. The attach nodes for the HL Fuselage mk4 Adapter piece don't match the nodes for the actual mk4 cargo bay pieces.

Now THAT is unfortunate and problematic, it means MK4 probably wasn't centered by TT. I'll need to take a look at that.
Edit: found the source mesh of TT cargohold, measured the distance between our pivots and added a fix to attachment configuration. Thanks a lot for the report!

An updated version was uploaded to kerbalspaceport.com and is set to appear within minutes. I will post a link as soon as it will be available. The update fixes some config errors (mismatched MK4 adapter node, wing naming, S2 LFO tank naming, HW21 lift values), brings FAR-compliant configs and includes an additional new 1.25m to MK2 adapter as a bonus!

Originally Posted by Saku

Just a question, where are the doors for the "M2 Cargo Hold Type B"? The description states that "Type B comes with functional doors".
Thank you in advance.

They are rolling out from above, like garage doors. You can toggle them with context menu by right-clicking on the part. Like here:

When I saw the shots, I was like.. WOOOW I could stay in this cockpit forever and never get out.. And then I see... That I don't actually "SEE"!

WHY CAN'T YOU SEE WHATS IN FRONT IN IVAs?? To me, that's the whole purpose of having cockpits.. Right? To actually see the runway you are landing on! Now it's so unenjoyable to have an IVA-only flight cause it would be instrument only..

The only solution is to lean the cockpit forward, which loses the whole fuselage smoothness.

When I saw the shots, I was like.. WOOOW I could stay in this cockpit forever and never get out.. And then I see... That I don't actually "SEE"!

WHY CAN'T YOU SEE WHATS IN FRONT IN IVAs?? To me, that's the whole purpose of having cockpits.. Right? To actually see the runway you are landing on! Now it's so unenjoyable to have an IVA-only flight cause it would be instrument only.

How much can be seen is dictated by the size and the slope of the frontal piece, and in KSP, I'm confined to very tiny parts with no space for elevated seats or nicely turned windows.

I have set up multiple view points precisely for that. Kerbals have huge heads and they are sitting where they fit, but you can change your view point to any convenient place by double clicking on windows. S2 cockpit has 4 clickable zones (front window, 2 side windows, area between the seats), MK2 cockpit has 4 clickable zones (front window for the first pilot, top window and 2 side windows for the second pilot), and M27 cockpit has 2 clickable zones (front and top windows). Try that out!